NOZZLE FOR INJECTION OF PRESSURIZED FLUID, MOLDING METHOD OF MOLDED ARTICLE OF THERMOPLASTIC RESIN AND MOLDING METHOD OF MOLDED ARTICLE OF THERMOSETTING RESIN

摘要

PROBLEM TO BE SOLVED: To provide a nozzle for injection of a pressurized fluid which can surely inject the pressurized fluid into a thermoplastic resin injected in a cavity and enables backward movement of a nozzle for injection of pressurized gas without any problem. SOLUTION: The nozzle 10 for injection of the pressurized fluid is devised for injecting the pressurized fluid into a molten resin injected in the cavity provided in a mold, and the nozzle is provided with a cooling means 20 for cooling the fore end portion 12 coming into contact with the molten resin injected in the cavity.